Subsite administrators no access to plugins

I have several users who have created their own subsites. These users are the administrators of the site. They can view that there is a plugin menu in their dashboard, but when they try to access the plugins they cannot view currently installed plugins, which also means they cannot activate any currently installed plugins.

Some plugins on the site are network activated. That’s not really what the issue is. Subsite administrators should be able to see all installed plugins (except those network activated) and have the option to activate or deactivate a plugin.